clk: renesas: rzg2l: Add rzg2l_mod_clock_init_mstop_helper()

Refactor the mstop initialisation logic in rzg2l_mod_clock_init_mstop()
into a dedicated helper function rzg2l_mod_clock_init_mstop_helper().
This decouples the logic for setting module stop state on disabled
clocks from the iteration loop, allowing it to be reused during resume
to re-enable critical clocks.

No functional change.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20260324114329.268249-6-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: bijudas

drivers/clk/renesas/rzg2l-cpg.c

@@ -1594,6 +1594,20 @@ static struct mstop *rzg2l_mod_clock_get_mstop(struct rzg2l_cpg_priv *priv, u32
 	return NULL;
 }
 
+static void rzg2l_mod_clock_init_mstop_helper(struct rzg2l_cpg_priv *priv,
+					      struct mod_clock *clk)
+{
+	/*
+	 * Out of reset all modules are enabled. Set module state in case
+	 * associated clocks are disabled at probe. Otherwise module is in
+	 * invalid HW state.
+	 */
+	scoped_guard(spinlock_irqsave, &priv->rmw_lock) {
+		if (!rzg2l_mod_clock_is_enabled(&clk->hw))
+			rzg2l_mod_clock_module_set_state(clk, true);
+	}
+}
+
 static void rzg2l_mod_clock_init_mstop(struct rzg2l_cpg_priv *priv)
 {
 	struct mod_clock *clk;
@@ -1603,15 +1617,7 @@ static void rzg2l_mod_clock_init_mstop(struct rzg2l_cpg_priv *priv)
 		if (!clk->mstop)
 			continue;
 
-		/*
-		 * Out of reset all modules are enabled. Set module state
-		 * in case associated clocks are disabled at probe. Otherwise
-		 * module is in invalid HW state.
-		 */
-		scoped_guard(spinlock_irqsave, &priv->rmw_lock) {
-			if (!rzg2l_mod_clock_is_enabled(&clk->hw))
-				rzg2l_mod_clock_module_set_state(clk, true);
-		}
+		rzg2l_mod_clock_init_mstop_helper(priv, clk);
 	}
 }